Systems and methods described herein provide a belt drive with necessary power transfer for a vacuum priming system while enabling simplified belt replacement. In one implementation, an auxiliary drive system for driving a vacuum pump in a pump priming system is provided. The auxiliary drive system includes a drive sprocket attached to a drive shaft of a main pump, an auxiliary sprocket attached to a shaft of the vacuum pump, an idler pulley mounted to an engine bracket of the main pump, and an endless drive belt having an inner side and an outer side. The idler pulley causes the endless drive belt to engage the drive sprocket and rotate the auxiliary sprocket without the endless drive belt encircling the drive sprocket.
F02B 67/06 - Moteurs caractérisés par l'agencement d'appareils auxiliaires non prévu ailleurs, p. ex. un appareil ayant des fonctions différentesEntraînement non prévu ailleurs de ces appareils auxiliaires par les moteurs à entraînement mécanique des appareils auxiliaires entraînés par chaînes, courroies ou autres organes sans fin
F16H 7/02 - Transmissions pour transmettre un mouvement rotatif par des organes flexibles sans fin par courroiesTransmissions pour transmettre un mouvement rotatif par des organes flexibles sans fin par courroies trapézoïdales
F16H 7/08 - Moyens pour faire varier la tension des courroies, des câbles ou des chaînes
F16H 7/12 - Moyens pour faire varier la tension des courroies, des câbles ou des chaînes par réglage de la position de l'axe d'une poulie d'une poulie folle
A device, system, and method are provided for providing vibration data for rotating machinery. A sensor device is provided as a one-piece unit that is mechanically mounted to a pump. The sensor includes a vibration sensor, a processor, a wireless communications interface for exchanging data with a user device, and an internal battery. The processor is configured to receive a measurement request from the user device via the wireless communications interface. In response, the processor is further configured to configure the vibration sensor, receive data samples for multiple axes from the vibration sensor, and calculate a component velocity root mean square (vRMS) value, from the data samples, for each of the multiple axes. The processor may combine the component vRMS values into a sample vRMS value, and send a final vRMS value, based on the sample vRMS value, to the user device via the wireless communication interface.
G01P 15/097 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques au moyen d'éléments vibrants
G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur
G01P 15/18 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération dans plusieurs dimensions
An electrical circuit includes circuitry connected to a dry contact switch. The circuitry translates an open or closed state of the dry contact switch to a current loop current having one of multiple current levels, where the multiple current levels comprise a first non-zero current level and a second non-zero current level that is different than the first non-zero current level. The circuitry further sends the current loop current, at the one of the multiple current levels, via a current loop connected to the electrical circuit.
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
Systems and methods described herein provide a configurable base plate for industrial pump configurations, including different combinations of pump, motor, and coupling types. Slotted motor adapters allow for axial adjustment of the motor position, and movable threaded mounting lugs lock in the motor position for ease of future maintenance, replacement, disassembly, and repeated reassembly. A single adjustable coupling guard is compatible with a variety of pump, coupling, and motor configurations that fit on the base plate.
F16M 5/00 - Bâtis pour machines, c.-à-d. moyens de tenir les moteurs ou machines sur leurs fondations
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
A device, system, and methods are provided for remotely monitoring and managing pump equipment. One or more monitoring devices are configured to provide operational data and geolocation data of monitored equipment. A network device is configured to receive monitoring data from the monitoring devices via different device-specific APIs, perform a data transformation to standardize the monitoring data into standardized data, and store the standardized data in a database. The network device further provides to a user device a user interface to select an asset group of the monitored equipment and receives, from the user device via the user interface, a definition of the asset group. The network device monitors the monitored equipment of the asset group based on the operational data and geolocation data, and provides information to the user device based on the monitoring.
A device, system, and methods are provided for remotely monitoring and managing pump equipment. One or more monitoring devices are configured to provide operational data and geolocation data of monitored equipment. A network device is configured to receive monitoring data from the monitoring devices via different device-specific APIs, perform a data transformation to standardize the monitoring data into standardized data, and store the standardized data in a database. The network device further provides to a user device a user interface to select an asset group of the monitored equipment and receives, from the user device via the user interface, a definition of the asset group. The network device monitors the monitored equipment of the asset group based on the operational data and geolocation data, and provides information to the user device based on the monitoring.
G06Q 10/20 - Administration de la réparation ou de la maintenance des produits
G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
H04L 67/12 - Protocoles spécialement adaptés aux environnements propriétaires ou de mise en réseau pour un usage spécial, p. ex. les réseaux médicaux, les réseaux de capteurs, les réseaux dans les véhicules ou les réseaux de mesure à distance
H04W 4/02 - Services utilisant des informations de localisation
H04W 4/38 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour la collecte d’informations de capteurs
H04W 24/02 - Dispositions pour optimiser l'état de fonctionnement
A replaceable seat is provided for a convertible check valve. The convertible check valve includes a first valve body section having a first passageway and a first flange, and a second valve body section having a second passageway and a second flange. The second flange is configured for connection to the first flange. The check valve also includes a flapper that moves between a closed state and an opened state. The flapper prevents flow between the first passageway and the second passageway when the flapper is in the closed state. The check valve also includes a gasket interposed between the first flange and the second flange. The gasket includes an opening to permit fluid communication between the first passageway and the second passageway and a valve seat with an integrated O-ring that is configured to contact the flapper when the flapper is in the closed state.
F16K 15/03 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés et élément de fermeture à charnière
F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage
F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape
F16K 1/226 - Forme ou disposition du joint d'étanchéité
F16J 15/08 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre exclusivement par garniture métallique
F16J 15/12 - Joints d'étanchéité entre surfaces immobiles entre elles avec garniture solide comprimée entre les surfaces à joindre par garniture non métallique par renforcement ou couverture métallique
A replaceable seat is provided for a convertible check valve. The convertible check valve includes a first valve body section having a first passageway and a first flange, and a second valve body section having a second passageway and a second flange. The second flange is configured for connection to the first flange. The check valve also includes a flapper that moves between a closed state and an opened state. The flapper prevents flow between the first passageway and the second passageway when the flapper is in the closed state. The check valve also includes a gasket interposed between the first flange and the second flange. The gasket includes an opening to permit fluid communication between the first passageway and the second passageway and a valve seat with an integrated O-ring that is configured to contact the flapper when the flapper is in the closed state.
F16K 1/20 - Soupapes ou clapets, c.-à-d. dispositifs obturateurs dont l'élément de fermeture possède au moins une composante du mouvement d'ouverture ou de fermeture perpendiculaire à la surface d'obturation à éléments de fermeture articulés à pivot comportant disque ou volet pivotant dont l'axe de rotation est disposé à l'extérieur du corps de soupape
Systems and methods described herein provide a smart vacuum priming system for centrifugal pumps. The vacuum priming system includes a vacuum pump, a suction assembly, an electromagnetic clutch assembly, and a pressure sensor. The suction assembly provides fluid communication between the vacuum pump and a float box of the centrifugal pump. The electromagnetic clutch assembly selectively engages the vacuum pump, such that a drive shaft of the centrifugal pump also powers the vacuum pump when the clutch is on. The pressure sensor indicates when the centrifugal pump is in a primed state based on a discharge pressure of the centrifugal pump. When the pressure sensor indicates the main pump is in the primed state, the electromagnetic clutch decouples the vacuum pump from the drive shaft. When the pressure sensor indicates the main pump is not in the primed state, the electromagnetic clutch couples the vacuum pump to the drive shaft.
Systems and methods described herein provide a smart vacuum priming system for centrifugal pumps. The vacuum priming system includes a vacuum pump, a suction assembly, an electromagnetic clutch assembly, and a pressure sensor. The suction assembly provides fluid communication between the vacuum pump and a float box of the centrifugal pump. The electromagnetic clutch assembly selectively engages the vacuum pump, such that a drive shaft of the centrifugal pump also powers the vacuum pump when the clutch is on. The pressure sensor indicates when the centrifugal pump is in a primed state based on a discharge pressure of the centrifugal pump. When the pressure sensor indicates the main pump is in the primed state, the electromagnetic clutch decouples the vacuum pump from the drive shaft. When the pressure sensor indicates the main pump is not in the primed state, the electromagnetic clutch couples the vacuum pump to the drive shaft.
A device, system, and method are provided for providing vibration-based rotational speed measurements for rotating machinery. A sensor device is provided as a one-piece unit that is mechanically mounted to a pump. The sensor device includes a vibration sensor, a wireless communications interface for exchanging data with a user device, an internal battery, and a processor. The processor receives a measurement request from the user device, retrieves data samples from the vibration sensor, generates an acceleration spectrum based on the data samples, and detects peaks in the acceleration spectrum. The processor then selects, from the detected peaks, peaks corresponding to vibration at the rotational speed and its harmonics, calculates a rotational speed value based on a highest-frequency peak of the shaft frequency peak and its associated harmonic peaks, and sends the rotational speed value to the user device via the wireless communication interface.
A device, system, and method are provided for providing vibration-based rotational speed measurements for rotating machinery. A sensor device is provided as a one-piece unit that is mechanically mounted to a pump. The sensor device includes a vibration sensor, a wireless communications interface for exchanging data with a user device, an internal battery, and a processor. The processor receives a measurement request from the user device, retrieves data samples from the vibration sensor, generates an acceleration spectrum based on the data samples, and detects peaks in the acceleration spectrum. The processor then selects, from the detected peaks, peaks corresponding to vibration at the rotational speed and its harmonics, calculates a rotational speed value based on a highest-frequency peak of the shaft frequency peak and its associated harmonic peaks, and sends the rotational speed value to the user device via the wireless communication interface.
G01P 3/48 - Dispositifs caractérisés par l'utilisation de moyens électriques ou magnétiques pour mesurer la vitesse angulaire en mesurant la fréquence du courant ou de la tension engendrés
G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur
09 - Appareils et instruments scientifiques et électriques
Produits et services
Computer hardware system used to remotely monitor a pump and related equipment, namely, motors and engines that power the pump, inlet and outlet piping, and a priming system that primes the pump
Systems and methods described herein provide a vacuum priming system for close-coupled pumps. The vacuum priming system is mounted separately from a centrifugal pump and powered by an electric motor. An auxiliary vacuum pump pulls prime (e.g., water or another liquid) through a solenoid valve that is in turn connected to a connecting tube. At one end of the connecting tube is a screen and prime sensor. The screen filters particulates to protect the vacuum pump, and the prime sensor may detect when the centrifugal pump is primed. The vacuum priming system includes a self-contained control panel with an auto operation mode to only pull power during priming, reducing power consumption over the lifetime of the pump system and improving efficiency.
A magnetic adaptor is provided for attaching a monitoring device to monitored equipment. A mounting plate of the adaptor includes a front surface, a rear surface, and a recess in the rear surface. A magnet is secured within the recess. The mounting plate also includes threaded mounting holes arranged in a hole pattern that corresponds to a bolt pattern of the monitoring device. The threaded mounting holes are configured to receive threaded bolts from the monitoring device to secure the front surface against the monitoring device. The magnet is configured to adhere to the monitored equipment and cause at least a portion the rear surface to contact the monitored equipment. The adaptor transfers vibration and/or thermal energy from the monitored equipment to the monitoring device.
G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur
G01K 1/143 - SupportsDispositifs de fixationDispositions pour le montage de thermomètres en des endroits particuliers pour la mesure de la température de surfaces
G01D 11/30 - Supports spécialement adaptés à un instrumentSupports spécialement adaptés à un ensemble d'instruments
A device for monitoring pump equipment may include a pump monitoring device comprising sensor devices configured to monitor the pump equipment, a controller configured to configure the sensor devices and collect sensor data from the sensor devices, and a wireless transceiver configured to communicate with a cellular base station. The device may further include a battery configured to provide power to the pump monitoring device; a solar panel; a charging system to charge the battery using the solar panel; and a chassis configured to secure the pump monitoring system, battery, solar panel, and charging system into a self-contained mobile monitoring device.
A device includes a device input, an output connector configured to connect to a current loop, and current loop transmitter circuitry. The current loop transmitter circuitry receives, via the device input, an input from a dry contact switch, and translates a state of the dry contact switch to a current loop current. The current loop transmitter circuitry transmits the current loop current via the output connector through the current loop.
A device includes a device input, an output connector configured to connect to a current loop, and current loop transmitter circuitry. The current loop transmitter circuitry receives, via the device input, an input from a dry contact switch, and translates a state of the dry contact switch to a current loop current. The current loop transmitter circuitry transmits the current loop current via the output connector through the current loop.
H01H 47/00 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
Systems and methods described herein provide a configurable base plate for industrial pump configurations, including different combinations of pump, motor, and coupling types. Slotted motor adapters allow for axial adjustment of the motor position, and movable threaded mounting lugs lock in the motor position for ease of future maintenance, replacement, disassembly, and repeated reassembly. The mounting lugs are locked into place by affixing jackscrew lugs, which serve to both semi-permanently locate the motor mounting locations, and also provide a point to install a jackscrew used to finely adjust motor position and coupling alignment. A single adjustable coupling guard is compatible with a variety of pump, coupling, and motor configurations that fit on the base plate.
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 35/04 - Pompes à piston spécialement adaptées aux fluides compressibles et caractérisées par les moyens d'entraînement de leurs organes de travail ou par leur combinaison avec les machines motrices ou moteurs qui les entraînent ou bien par leurs adaptations à cet effet, non prévues ailleurs les moyens étant électriques
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
25.
Configurable base plate system for industrial pumps
Systems and methods described herein provide a configurable base plate for industrial pump configurations, including different combinations of pump, motor, and coupling types. Slotted motor adapters allow for axial adjustment of the motor position, and movable threaded mounting lugs lock in the motor position for ease of future maintenance, replacement, disassembly, and repeated reassembly. The mounting lugs are locked into place by affixing jackscrew lugs, which serve to both semi-permanently locate the motor mounting locations, and also provide a point to install a jackscrew used to finely adjust motor position and coupling alignment. A single adjustable coupling guard is compatible with a variety of pump, coupling, and motor configurations that fit on the base plate.
F16M 5/00 - Bâtis pour machines, c.-à-d. moyens de tenir les moteurs ou machines sur leurs fondations
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/16 - Carcasses d'enveloppeCylindresChemises de cylindre ou culassesConnexions des tubulures pour fluide
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
a float box for an industrial centrifugal pump with a priming system, namely, a structure to house an internal float assembly that enables the priming system to engage and disengage priming the centrifugal pump
a float box for an industrial centrifugal pump with a priming system, namely, a structure to house an internal float assembly that enables the priming system to control suctioning of fluid to the centrifugal pump
28.
System and method for vibration severity measurement
A device, system, and method are provided for providing vibration data for rotating machinery. A sensor device is provided as a one-piece unit that is mechanically mounted to a pump. The sensor includes a vibration sensor, a processor, a wireless communications interface for exchanging data with a user device, and an internal battery. The processor is configured to receive a measurement request from the user device via the wireless communications interface. In response, the processor is further configured to configure the vibration sensor, receive data samples for multiple axes from the vibration sensor, and calculate a component velocity root mean square (vRMS) value, from the data samples, for each of the multiple axes. The processor may combine the component vRMS values into a sample vRMS value, and send a final vRMS value, based on the sample vRMS value, to the user device via the wireless communication interface.
G01P 15/097 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération en ayant recours aux forces d'inertie avec conversion en valeurs électriques ou magnétiques au moyen d'éléments vibrants
G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur
G01P 15/18 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération dans plusieurs dimensions
Systems and methods are provided for remotely monitoring liquid lubricant levels for pump equipment. A system includes a reservoir to store lubricant and a lubrication gland to expose a shaft seal of the pump equipment to the lubricant. A feed line and a return line circulate the lubricant between the reservoir and the lubrication gland. A level sensor is configured to measure a fluid level in the reservoir. The level sensor uses a communication interface to transmit fluid level data a monitoring device mounted to the pump equipment. The monitoring device is configured to compare the fluid level data against stored alert thresholds and send, to a provider network, an alert signal when the fluid level data is below an alert threshold. If the fluid level data is not below an alert threshold, the monitoring device stores the fluid level data for periodic reporting.
F01M 11/12 - Dispositifs indicateursAutres dispositifs de sécurité concernant le niveau du lubrifiant
F01M 11/02 - Aménagements des conduits de lubrification
F01M 11/04 - Remplissage ou vidange du lubrifiant des "machines" ou moteurs
F16N 19/00 - Réservoirs à lubrifiants pour emploi dans les graisseurs ou les systèmes de lubrification
F16N 29/02 - Dispositifs particuliers dans les installations ou les systèmes de lubrification indiquant ou détectant des conditions indésirablesUtilisation des dispositifs sensibles à ces conditions dans les installations ou les systèmes de lubrification agissant sur l'alimentation en lubrifiant
30.
Mounting pocket for remote equipment monitoring device
A mounting pocket is provided for attaching a monitoring device to a pump bearing frame. The mounting pocket includes a recessed area located on an external side of the pump bearing frame, a flat surface within the recessed area; and at least four threaded mounting holes extending into the flat surface. At least a part of the drive bearing portion has a reduced radial wall thickness adjacent the flat surface. The threaded mounting holes are configured to receive threaded bolts from the monitoring device to secure the flat surface against a rear surface of the monitoring device. The flat surface is configured to transfer at least one of vibration or thermal energy from the pump bearing frame through the flat surface to the monitoring device.
A computer device may include a memory storing instructions and a processor configured to execute the instructions to detect a selection of an item in a content catalog and display a drawing of a device corresponding to the selected item, wherein the device includes a set of components. The processor may be further configured to request a real-time bill of materials (BOM) corresponding to the device from an Enterprise Resource Planning (ERP) system, in response to detecting the selection of the item; receive the requested real-time BOM from the ERP system device; generate a BOM table based on the received real-time BOM; and match particular entries in the generated BOM table with particular ones of the plurality of components.
A device, system, and methods are provided for remotely monitoring pump equipment. A sensor device is provided as a one-piece unit that is mechanically mounted to a pump by a single threaded connection. The sensor device includes a vibration sensor and temperature sensor. The sensor device connects to a user device via a wireless personal area network (WPAN) connection to upload a current snapshot of vibration data and temperature data for the pump equipment. An application on the user device may add location data for the time of the data collection and connects to a provider network to upload the vibration data and temperature data.
H04Q 9/00 - Dispositions dans les systèmes de commande à distance ou de télémétrie pour appeler sélectivement une sous-station à partir d'une station principale, sous-station dans laquelle un appareil recherché est choisi pour appliquer un signal de commande ou pour obtenir des valeurs mesurées
H04W 4/38 - Services spécialement adaptés à des environnements, à des situations ou à des fins spécifiques pour la collecte d’informations de capteurs
F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles
G01K 1/024 - Moyens d’indication ou d’enregistrement spécialement adaptés aux thermomètres pour l’indication à distance
G01K 1/14 - SupportsDispositifs de fixationDispositions pour le montage de thermomètres en des endroits particuliers
G01K 7/00 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur
G01P 15/18 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération dans plusieurs dimensions
H04W 4/02 - Services utilisant des informations de localisation
09 - Appareils et instruments scientifiques et électriques
Produits et services
pump monitoring and management system comprising computer hardware and integrated, recorded software for monitoring, managing, locating and performing predictive analysis for pumps and other rotating equipment, and providing alerts to personnel located remotely from the pump or rotating equipment
A device, system, and methods are provided for remotely monitoring pump equipment. A monitoring device is mechanically mounted to a pump. The monitoring device includes internal vibration, temperature, and location sensors to periodically monitor a pump and upload data samples via cellular connection to a provider network. The monitoring device additionally includes connections to external sensors that can be sampled and uploaded with the other data samples, when the monitoring device is connected to external power. Authenticated users access the pump data though a user device that connects to the provider network.
G16H 40/67 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santéTIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement d’équipement ou de dispositifs médicaux pour le fonctionnement à distance
A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
A pump system includes dual centrifugal pumps mounted on a fabricated skid. Both pumps are belt driven by one motor. The pumps are piped with three two-way valves and crossover piping configured such that the pumps can be operated in either series or parallel flow using a single inlet and outlet for the system.
A convertible check valve having a pair of valve body sections, each of which includes a central passageway extending through it is disclosed. Each passageway terminates at an elliptical port. A moveable flapper is located within the check valve between the valve body sections and is movable between a between a closed state and an opened state, and vice versa, to effect the selective closing and opening of the ports. The valve body sections are configured to be rotated 180 degrees with respect to each other so that they are in an either an axially aligned state or in an elbow state. The interface between the passageways is formed by two elliptical shaped planar surfaces, each extending at an angle of 45 degrees to the central axis of the associated passageway. The valve also includes a pressure relief assembly.
A centrifugal pump including a pump chamber, a wear plate, and a rotatable impeller is disclosed. The wear plate has a suction inlet. The pump chamber includes a high pressure region around the impeller within the pump chamber. The impeller's front face has portion located adjacent the wear plate to form a recirculation zone in fluid communication with the high pressure region. Another portion of the impeller's front face forms a small running clearance between it and a portion of the wear plate. That running clearance is interposed between the recirculation zone and the suction inlet. The wear plate includes plural deflector vanes projecting into the recirculation zone. A portion of the front face of the impeller includes plural pump-out vanes in the recirculation zone. The deflector vanes cooperate with the pump-out vanes to expel abrasive particles and prevent them from collecting and eroding the running clearance.
F04D 29/44 - Moyens de guidage du fluide, p. ex. diffuseurs
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
F04D 29/16 - Joints d'étanchéité entre le côté du refoulement et celui de l'aspiration
F04D 29/42 - Carters d'enveloppeTubulures pour le fluide énergétique pour pompes radiales ou hélicocentrifuges
A centrifugal pump with a cutter mechanism has a toothed cutter auger affixed to an impeller, and a toothed cutter stator affixed to the volute casing. The auger is a rotor cutter preferably profiled radially to match the inlet geometry of the impeller vanes while extending along its central axis towards the pump suction. The auger is preferably radially concentric to the impeller and includes vanes numbered preferably to match the number of vanes on the impeller. The auger is affixed to the impeller, preferably with a lockscrew threaded into a common pump shaft. The radial profile of the auger essentially makes a continuous vane with the impeller, and prevents solids from hanging on the inlet vane tip or center void while providing a smooth flow transition into the impeller.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
F04D 29/22 - Rotors spécialement pour les pompes centrifuges
F04D 1/00 - Pompes à flux radial, p. ex. pompes centrifugesPompes hélicocentrifuges
A centrifugal pump with a cutter mechanism has a toothed cutter auger affixed to an impeller, and a toothed cutter stator affixed to the volute casing. The auger is a rotor cutter preferably profiled radially to match the inlet geometry of the impeller vanes while extending along its central axis towards the pump suction. The auger is preferably radially concentric to the impeller and includes vanes numbered preferably to match the number of vanes on the impeller. The auger is affixed to the impeller, preferably with a lockscrew threaded into a common pump shaft. The radial profile of the auger essentially makes a continuous vane with the impeller, and prevents solids from hanging on the inlet vane tip or center void while providing a smooth flow transition into the impeller.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
A centrifugal pump with a cutter mechanism consisting of a toothed cutter rotor, integral with the impeller wear ring, affixed to the impeller and a toothed cutter stator affixed to the casing, separately from the casing wear ring. A cutter mechanism consisting of a stator and rotor set such that they may be installed on the centrifugal pump impeller and casing as original equipment or as a retrofit. A cutter mechanism such that when installed in a centrifugal pump they prevent stringy materials, garbage and other agglomerated soft wastewater solids from partially restricting or totally blocking the inlet to the pump impeller. A cutter mechanism such that when it prevents solids from restricting or blocking the impeller inlet, it does so without significant decrease of flow throughput or significant increase in absorbed hydraulic horsepower.
F04D 7/04 - Pompes adaptées à la manipulation de liquides particuliers, p. ex. par choix de matériaux spéciaux pour les pompes ou pièces de pompe du type centrifuge les fluides étant visqueux ou non homogènes
